JPH0355273Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an insertion tool used when connecting posts for electrical terminals of each circuit to bus clips.

(Prior Art and Problems) As a conventional bus clip, the one shown in FIG. 7 of the accompanying drawings has been widely used. That is, in order to receive power from a power supply bus strip S extending in the horizontal direction, a circuit post P (only one is shown in the figure) stands upright and is connected to the bus strip S by a bus clip 1. Ru.

The bus clips 1 form a substantially S-shape when viewed from the longitudinal direction of the bus strips S, and are fitted and fixed to a large number of bus strips S at the arrangement pitches of the posts P. As shown in the figure, the bus clip 1 itself is fitted into the bus strip S at one upward groove of the S-shape, and receives a post P from below at the other downward groove. The wall portion 2 on the free end side forming the downward groove has a receiving portion that forms a throat portion 2A narrower than the thickness of the post P and expands toward the opening edge, and the post P is formed at the top of the downward groove. A penetrating window 3 is formed. When the bus clip 1 is pressed downward against the post P, the post P penetrates through the window portion 3 while being pressed by the throat portion 2A. Thus, the post P is connected to the bus strip S at the throat 2A via the bus clip 1, and can receive power therefrom.

However, although the conventional bus clip has the above-mentioned receiving portion and can be easily introduced into the downward groove of the post, it has a large insertion resistance and is difficult to work with. In particular, if the upper end of the post is square and not tapered, or if there is a burr, it may not only cause a big problem during work, but also damage the contact area of the bus clip, leading to circuit failure. It also leads to

Therefore, the present applicants have fundamentally solved the problems of the conventional bus clips mentioned above, and created a bus clip that does not cause any resistance when inserting the post, making the work easier and causing no damage. For the purpose of providing, a fitting part is fixed to a bus strip for power supply extending in the X direction of the orthogonal coordinate XYZ, and a clip part is inserted and connected to a post for an electric terminal extending in the positive Z direction, facing the same direction. A bus clip comprising: a pair of clip portions having narrowest portions with a spacing slightly narrower than the width of the post extending in a direction perpendicular to the Z axis to form a throat portion having a width larger than the width of the post; We have proposed a bus clip having an elastic contact piece and a tool guide surface for press-fitting a tool wider than the post in the positive Z direction in the remaining area of the throat other than the post insertion area.

More specifically, FIG. 2 shows a target bus clip, and as shown, the bus clip 10 is
The fitting part 11 and the clip part 12 are made of plate material.
It is equipped with The fitting part 11 is bent into a U-shape, and has an upward groove 13 formed therein for fitting in the positive Z direction with respect to the bus strip S extending in the X direction, and the groove width is equal to the width of the bus strip S. The thickness of the bath strip S is set to be slightly smaller than the thickness of the bath strip S. On the side wall of the fitting part 11 opposite to the clip part 12, protrusions (not shown) are formed inwardly by pressing or the like, and the protrusions (not shown) are formed in the holes provided on the bus strip S at equal pitches. (not shown) is positioned on the bus clip by engaging in a snap-like manner with a hole at a predetermined position.

Next, the clip portion 12 is
It has a pair of elastic contact pieces 15 and 16 extending upward from both sides in the axial direction and facing each other. The elastic contact pieces 15, 16 narrow the gap upward from the base 12A to form a throat 17 which is the narrowest part narrower than the width of the post, and then widen again to reach the upper edge. The throat portion 17 extends in the upper half so as to protrude in the Y positive direction, and its length (width)
is larger than the width in the Y direction of the post to be inserted into the throat 17 in the positive Z direction.

On the other hand, the base 12A of the clip portion 12 is bent into a rectangular cylindrical shape when viewed from above, and the outer surface of the wall on the positive side in the Y direction is flat and forms a tool guide surface 18. . The tool guide surface 18
is located at a position that bisects the throat 17 in the Y direction. The part protruding from the surface 18) is a part for press-fitting a tool.

The bus clip 10 having the above structure has an elastic contact piece 1
There is an advantage that the post can be inserted without resistance by widening the space between 5 and 16, and it would be even more convenient if there were a suitable tool to take advantage of this advantage.

(Means for solving the problems) The present invention has been made in response to the above-mentioned demands, and employs the following technical means.

That is, it has a fitting part fixed to a bus strip for power supply extending in the X direction of the orthogonal coordinate XYZ, and a clip part into which a post for an electric terminal extending in the positive Z direction is inserted and coupled in the same direction. The clip part includes a pair of elastic contact pieces whose narrowest parts are slightly narrower than the width of the post and extend in a direction perpendicular to the Z-axis line to form a throat part whose width is larger than the width of the post; A mounting tool used for a bus clip, which has a tool guide surface for press-fitting a tool wider than the post in the positive Z direction in the remaining area other than the post insertion area of the throat, the tool being stationary. and a movable piece that is slidable in the Z direction with respect to the stationary piece, and the stationary piece has a stepped groove extending in the X direction for accommodating the bus strip and the fitting part of the bus clip fitted to the bus strip. The movable piece has a notch part forming a space communicating with the step groove and accommodating the clip part of the bus clip fitted to the bus strip, and the movable piece has a notch part on the inner surface of the notch part. is configured with press-fit teeth that are located below the pair of elastic contact pieces and are wider than the width of the post.

(Function) First, the movable piece is set at a position where the stepped groove of the stationary piece and the notch of the movable piece form a communication space with the tool, and in this state, a bus strip with a bus clip is inserted into the communication space. Then, the press-fit teeth of the movable piece are located below the pair of elastic contact pieces of the corresponding bus clip. Next, when the movable piece is raised, the press-fit teeth of the movable piece are press-fitted into the remaining areas of the throats of the pair of elastic contact pieces. The tool is wider than the post, so
Due to the elastic deformation of the elastic contact piece, the throat becomes wider than the width of the post, and in this state, the post is inserted into the throat in the positive Z direction. Insertion of the post therefore occurs without any resistance. After that, the tool is extracted. Then, the elastic contact piece that had been expanded at the throat returns elastically, and the throat attempts to return to its original width, that is, narrower than the post. However, since the post has already been inserted into the throat, the throat remains within the width of the post and comes into elastic contact with the side surface of the post.

This ensures that the post remains in contact with the bus clip at the predetermined insertion position. Moreover, until it reaches this position, no resistance force such as friction is generated between it and the bus clip, and the bus clip will not be damaged.

(Embodiments) Two embodiments of the present invention will be described below based on the drawings.
In addition, in the figure, orthogonal coordinates XYZ are set in order to understand the directionality.

The tool 50 of the present invention has a plate-shaped stationary piece 5 and a movable piece 52 as shown in FIG. The stationary piece 51 and the movable piece 52 are housed in a frame (not shown), and within the frame, the movable piece 52 is connected to the stationary piece 51.
It can be moved up and down by sliding on the side of the board.

The stationary piece 51 is provided with a stepped groove 51A extending in the X direction on the inner side of the lower end. The stepped groove 51 is dimensioned to exactly accommodate the fitting portion of the bus clip fitted to the bus strip.

Movable piece 52 that moves up and down along the stationary piece 51
Also has a cutout groove 52A on its inner surface that faces the step groove 51A of the stationary piece 51 and extends in the X direction. The notched groove 52A is shaped to accommodate the clip portion 12 of the bus clip, and the lower end thereof has press-fit teeth 52 in the X-axis direction at a pitch equal to the arrangement pitch of the bus clip on the bus strip.
B, 52B', . . . are arranged. The press-fit teeth 52B, . . . have a height equal to that of the elastic contact piece 15,
It has a shape and size that allows it to be positioned below the throat 17 of the post 16, and its width in the X direction is slightly larger than the width of the post in the same direction, and the tip in particular is tapered.

Next, the procedure for inserting the post into the bus clip of this embodiment using the above tool will be explained based on FIGS. 3 to 6.

3A is a sectional view taken along the YZ plane between the bus clips attached to the bus strip, and FIG. 3B is a sectional view taken along the line BB in FIG. 3A.
A and B in FIGS. 4 to 6 below have a similar relationship.

First, the movable piece 52 is brought to the lowered position as shown in FIG. 3, and the cutout groove 52A of the movable piece 52 and the step groove 51A of the stationary piece 51 are brought into communication. A bus strip S with a bus clip 10 is inserted into the internal space thus formed from the X direction. Then, the ceiling surface of the groove 51A of the stationary piece 51 comes into contact with the upper surface of the bus strip S, and the press-fit teeth 52B of the movable piece 52 come to be located directly below the throat part 17 of the clip part 12 of the bus clip 10.

Next, as shown in FIG. 4, the movable piece 52 is raised. The press-fit teeth 52B of the movable piece 52 enter the throat portion 17 while being guided on the tool guide surface 18 of the clip portion 12. The press-fit tooth 52B has a tapered tip, but a body portion wider than the post, and causes the elastic contact pieces 15 and 16 to elastically deform to widen the throat portion 17. Here, the upward movement of the movable piece 52 is temporarily stopped.

In this state, as shown in FIG. 5, the post P is inserted into the throat 17 from below to above. At this time, since the throat portion 17 is larger than the width of the post P as described above, the post P can be inserted without any resistance.

Finally, move the movable piece 5 again as shown in Figure 6.
2 to rise. Then, the press-fit tooth 52B is pulled out from the throat 17, and the throat 17 attempts to return to its original width by the elastic restoring force of the elastic contact pieces 15, 16. However, since the post P has already been inserted there, the restoration remains at the post width, and the post P is reliably held between the elastic contact pieces 15 and 16 to maintain the contact state. Thus, the connection between the bus clip 10 and the post P is completed, and the tool 50 is moved in the X direction to remove it from the bus strip.

(Effect of the invention) As described above, in the present invention, the stationary piece holds down the bus strip while the movable piece is provided with the press-fit teeth, so that the contact area is smoothly widened prior to inserting the post to keep the post in a non-resistance state. It is now possible to easily insert the

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the main parts of the tool used in the bus clip shown in Fig. 2, Fig. 2 is a perspective view of a bus clip according to an embodiment of the present invention, and Figs. These are cross-sectional views showing the step-by-step operation of inserting a post into a bus clip using the tool shown in Figure 1, in which A is the cross section in the YZ plane, and B is the cross section at the position shown in Figure 3 A. It is a sectional view of B, and the seventh
The figure is a perspective view of a conventional bus clip. 10...Bus clip, 11...Fitting part, 12
... Clip part, 15, 16 ... Elastic contact part, 1
7... Throat, 18... Tool guide surface.

Claims (1)

[Claim for Utility Model Registration] A clip in which a fitting part fixed to a bus strip for power supply extending in the X direction of the orthogonal coordinate XYZ and a post for an electric terminal extending in the positive Z direction are inserted and connected in the same direction. The clip portion has a pair of throat portions whose narrowest portions are slightly narrower than the width of the post and extend in a direction perpendicular to the Z axis to form a throat portion having a width greater than the width of the post. A mounting used for a bus clip that has an elastic contact piece and a tool guide surface for press-fitting a tool wider than the post in the positive Z direction in the remaining area of the throat other than the post insertion area. The tool has a stationary piece and a movable piece that is slidable in the Z direction with respect to the stationary piece, and the stationary piece is for accommodating a bus strip and a fitting part of a bus clip fitted on the bus strip. The movable piece has a stepped groove extending in the X direction at its inner lower end, and the movable piece has a notch that forms a space communicating with the stepped groove and accommodates a clip portion of a bus clip fitted to the bus strip. A bus clip insertion tool characterized in that the inner surface of the notch is provided with press-fit teeth that are located below the pair of elastic contact pieces and are wider than the width of the post.